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Merge pull request #2448 from fjl/jsre-bignum 

jsre: print BigNumber objects with custom constructor as number
This commit is contained in:
Felix Lange 2016-04-12 18:52:40 +02:00
parent f460b0217f 4e85be0717
commit 9d81f4fdd1
1 changed files with 13 additions and 5 deletions
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18
jsre/pretty.go
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@ -227,12 +227,20 @@ func iterOwnKeys(vm *otto.Otto, obj *otto.Object, f func(string)) {
}
func (ctx ppctx) isBigNumber(v *otto.Object) bool {
BigNumber, err := ctx.vm.Run("BigNumber.prototype")
if err != nil {
panic(err)
// Handle numbers with custom constructor.
if v, _ := v.Get("constructor"); v.Object() != nil {
if strings.HasPrefix(toString(v.Object()), "function BigNumber") {
return true
}
cp := constructorPrototype(v)
return cp != nil && cp.Value() == BigNumber
}
// Handle default constructor.
BigNumber, _ := ctx.vm.Object("BigNumber.prototype")
if BigNumber == nil {
return false
}
bv, _ := BigNumber.Call("isPrototypeOf", v)
b, _ := bv.ToBoolean()
return b
}
func toString(obj *otto.Object) string {